Engine fly-wheel.



""miumnmmunl PATENTED JULY 16, 1907.

liilT II III I new 3 G. W. SCHULTZ. ENGINE FLY WHEEL. APPLICATION FILEDMAY 17,1906.

urrme sx GEORGE w. SCHULTZ, or srr. DAVIDS, PENNSYLVANIA.

Enema FLY-WERE! No. seaaae.

Specification of Letters Patent.

Patented July 16. 1907.

A pplioatlon' flled m 17, 1906. Serial No. 817,866.

3 To all concern:

Be it known that I, GEORGE W. Scnnmz, a .citizen of the United. States,residing at St. 'Davids, Delaware county, State of Pennsylvania, haveinvented a new andtus'eiul Engine, Fly-Whee1,. o whic h the following isa specification. I s My invention relates to-engizu fly wheels andconsists'of anovel construction which is adapted to over-'comethe'deiectis and take the place of the rigid cast ironconstructionordinarily employed.-

One object of my invention is to construct a fly wheel oiinterchsngeable segments which may be readily u ptradymcad and assembledand in which a hollow rim casing is employed which is adapted to befilled 'with-anysuitable material either concrete, sand or the like, ora' cable such as a steel, iron or wire rope or other similar materialmay be wound around the'wheel'z until a suitable weight. is accumulatedto tonna weighted rim.

Anotherobject of my invention is to eliminate the possibilityoi the flywheel. bursting or flying in pieces which sometimes occurs in practiceeither owing to de fec'tive constructionor to. abnormal speed of theengine, thereby rendering it possible to develop a greaterhorse-powerowing to the greater number of revolutions per minute atwhich the wheel may be driven and still be within the limit of szifety.

Another object of my invention is to produce a con.- struction'inwhichthere is more spring or elasticity to overcomethe shocks. or vibrationsthan there is in a rigid cast iron fly wheel.

. Another object of my invention is to produce a structurein which theweight of the crank shaft may be accur'ately counterbalanced accordingto conditions and '35 i requirements.

Totheabove' ends'my invention consists broadly of a fly wheel having asectional or other hub and a hollowrim member adapted to be filled withany solid or continuous material to form the weighted rim, the rimsections being connected with the hub by means of steel or iron beams ortubes of'any desired constructibn.

beams, plates, or tubes forming the spokes of the fly wheel are attachedattheir outer ends to the rim casing. which latter is composed of anumber of rectangulair-shaped boxes preferably made of a suitablethickness of iron or steel-plates, the top and bottom plates beingcurved, to conform to the circumference of the It furthercoiisists ofother novel features of construction, all be hereinafter fully setforth.

Y v The various instrumentalitiesof which my invention consistemay bedifierently arranged and organized and Itfurther consists of a fly wheelin which the I- in the accompanying drawings Ihave shown oneembodiment'thereof. which gives in practice satisfactory and reliableresults.

Figure l'represents a side elevation of a portion of a fly wheelembodying my invention. Fig. 2 represents a sectional elevation ofFig. 1. Fig. 3 represents a plan view of my device having a portionthereof removed for clearness of illustration. Fig. 4 represents asectional elevation of a portion of my. device. Fig. 5 represents aperspective view of a portion of the fly wheel, showing the manner inwhich the I-beams are secured tothe rimcasing member. Similar numeralsof reference indicate corresponding parts in the figures. I I Referringto the drawings, 1 designates a hub which in the present instance I haveshown as comprising a plurality of segments in order that the same maybe suitably attached to the engine shaft without removing the latterfrom the pillow blocks which would be necspace 3 between said flanges,said lugs or flanges having recesses 4 thereirf in which are adapted tobe seated I-beams, tubes or plates 5.

6 designates suitable fastening devices such as bolts and nuts, saidbolts passing through the reinforcing flanges or lugs carried by the huband through the inner ends of the I-beams 5, which are seated in therecesses 4. If steel I-beams are employed the number and size thereofdepends upon the weight which is to be supported and the tension andstrain to which the fly wheel is to be subjected. The beams, plates ortubes forming the spokes of the fly wheel aresecure d at their outerends to the rim casingtmcmbers 7 which are composed of a number ofrectangular-shaped boxes constructed of a suitable thickness of steel,iron or other plate, the bottom plate 8 being curved or deflected toconform to the circumference of the fly wheel which it is desired toconstruct. If I-beams are employed the same are recessed on one side, asseen at 9', in order that the rim member 7 may be rigidly securedthereto by suitable fastening devices such as bolts or rivets 10.

ll designates the cov :1 lids Ior the rim members havingfianges 12through which pass the fastening devices such as screws or equivalentfastening device-s 13-which engage the side of the rim memb rs 7 Inorder to' fasten the rim sections in positi n one or more cords, cablesor their equivalents H are employed, said cables being slightly less inlength than the outer circumference of the rim casing bottom plate 8 andhaving their ends connected in any suitable manner with turn-buckles'15by meansoi which a sufiicient tension may beplacedupon the cables tomaintain the parts of the fly wheel in position and to lock thedifferent segments together. After the segments have been lockedtogether by .means of cables 14 and turn buckles 15, I secure at asuitable point, either in the bottom orside of the casing, one end of acable 16 made of any suitable continuous material such as chain,

' metallic bands wire, wire ropeor other suitable mate-' rial. Thiscable, is then wound around the rim within the hollow casing 7 until asuitable weight is accumulated to form the weighted rim of the'flywheel. The cable is then cut off and the end thereof suitably fastenedto the rim casing. I If, it-is desired to vary the weight of any sectionof the rim in order to. counterbalance the weight of the crank shaft itcan be accomplished by securing the ends of thewire, rope, chain orother cable to a hollow pipe or box 17 in any desired manner. The lengthof these pieces ofpipe or hollow members may bevaried according to therequirements of the case so that the weight of the rim at any desiredpoint may be varied as desired. After'the free end of the cable has beensecured in place by any suitable means, the lid, rim or cover 12 isplaced in position and secured to the-casing by means of suitablefastening devices suchas screws 13. QThe different segments arepreferably arranged so that they overlapeach other,

in order that the different sections of the wheel may be more firmlylocked'together after the cable has been placed in position. In case asuitable cable such as wire, rope or chain is not obtainable the hollowrim casing member may be filled with concrete, castings,

iron borings, sand or other heavy material by pouring the same thereinafter which the'top lid member is i'astened in position.

v If desired the hub sections may be provided with flanges 18 throughwhich passfastening-devices such as bolts or equivalent devices 19 Itwill be apparent that in my novel construction the distribution of agreater weight to the rim is permitted since the spokes and hubs,although lighter in weight, are stronger than in the ordinary cast ironconstruction employed'andthere will always be morev accident ordestruction of property such as often occurs from this cause.

It will further be apparent that an engine havinga fly wheel embodyingmy invention may be driven with safety at a much greater speed than ispermissible in the ordinary cast iron construction employed and for thisreason-a" eater horse-power maybe developed. It willfurthenbeapparentthat nvention in its broadssop e ns sts'of a fly wheel composedof inter-* change e s gment-s, tension means for,, maintainingsaid'segidients in assembled positionr a hollow'rim member tolbe filledwith my solid or continuous material and suitable supporting memberssuch as Iv or other beams suitablysecured to a hub member and rimmember, the shape of these beams varying according to the conditions andrequirements of the case. lt will now be apparent from the foregoingthat have in-the present instance p'roduceda novel and usefulconstruction of an engine fly wheel which embodies the features ofadvantage enumerated" in the statement of invention and the abovedescription and I have in the present instance shown and described thepreferred embodiment thereof. It will be further'appar 1 ent that it;may be desirable in some: instances to em ploy angle-irons or the likefor side braces, in order. to

increase the strength of the wheel.

as new and desire to secure by Letters Patent, is I 1; In a fly wheel;va hub member, a rim member carried thereby and comprising a'series ofseparate boxes having curved bottoms, tension means for pre'ventlngimproper movementof said boxes .and a. continuous cable woundi uponitself within said boxes to .form

2. In a'sectional fly wheel hub J I p H members suitably securedthereto, tension means within said members for securing-said members inassembled position, and a' cable woundwitliin said-rim member.

3. In a fly wheel, a hub ,memben, spokes secured thereto hollowrlm'members secured theouter. ends of said spokes, tension means withinsaid members for securing said rim members. i v

' 4. In a fly wheel, sectional hub members having a plurality of flangesextending therefrom, spokes secured to said flanges, a hollow rimsection secured at the outer 'ends of said caslng in assembled positionands filling material' carried by said casing.

6. In :1- fly wheel, a hub member, spokes secured thereto havingrecesses at their outer ends, hollow rim members socured in saidrecesses, and tension means within said hollow rim membersfor securingthe parts 'in assembled position. f

7.'In a fly wheel, hub members, spokes radiating therefrom-sectionalhollow rim members carried by said spokes, a fastening member withinsaid rim member for securing the parts thereof in assembled position,means for increasing the tension of said fnstei'ilng members and a cablei wound .around said rim member to form a weighted rim..- 8] In a' flywheel, a hub member having flangesthe reon provided with recesses,spokes secured within said recesses, sectional rim members carried bysaid spokes, one or more members of less length then theinner'circumfersnce of said rim members and tension means engaging theends of said members for maintaining the parts in assembled posh tion.

- 9. In a fly wheel, a hub member flanges, spokes secured in saidapertures, a hollow rim vice for said members and n fllling materiulwitllin snid rim members.

10. 'In ufly wheel, a hub member, spokes-secured-thereto and radiatingtherefrom, sectional hollow rlm members having a removable covercarried-by said spokes, means for engaging the bottom of said rimmembers for securing the same in assembled positlop and :1 cable woundupon itself within said rim member for producingn weighted rim.

from, a hollow rim iiieinliei' curried by said spokes, means engagingthe bottom of said rim member for securing the same in assembledpositiom'a cable wound within said rim member to form :i weighted rimand menus having a (llf ferent welulit than suid'cnble secured theretoto vary the balance of them/wheel.

Having thus'described myinvention, what I claim said rim members inassembled position, and :1 filling for said spokes and a fillingmaterial within saldsectlons to casing carried by said spokes, atenslongdevlce for securing having apertured member-I carried by saidspokes one or more members adapted to lock the rim members in position,a tension de- 11. Inn fly wheel z y hub member, spokes radiating therc-I 12. In a fly wheel, a hub member, -I-beams secured thereassembledposition, :i cable wound within sni i rim member 10 to, hoiibw' rimsections secured at the enter end of said to form a weighted rim, and amember having a. different I-beams, means engaging said rim sections forsecuring the weight than said cable secured to the latter t6 vary theparts in positien, a cable within said rim member: for inbalance of thefly wheel. creasing the weight thereof, and means within said rim imember forvarying the counterpoise o the fly wheel. 7 g- 13. In a flywheel, a hub member, spokes radiating there- Witnesses from, a hollowrimmember carried by said sp'okes me'nns FRANK SMITH, -withip saidhoiiown'im member 1301 securing the same in -C. R. KENNEDY.

